import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'


// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 20000 // request timeout
})

// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent

    if (store.getters.token) {
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation
      config.headers['X-Token'] = getToken()
    }
    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
  */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
        // if (response.result['token']) {
        //   setToken(response.result['token'])
        // }
    const res = response.data ? response.data : {}
    formatMsg(res)

    // if the custom code is not 20000, it is judged as an error.
    // if (res.code !== 20000 ) {
    //   console.log(res.code)
    //   Message({
    //     message: res.message || 'Error',
    //     type: 'error',
    //     duration: 5 * 1000
    //   })

    //   // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
    //   if (res.code === 50008 || res.code === 50012 || res.code === 50014) {
    //     // to re-login
    //     MessageBox.confirm('You have been logged out, you can cancel to stay on this page, or log in again', 'Confirm logout', {
    //       confirmButtonText: 'Re-Login',
    //       cancelButtonText: 'Cancel',
    //       type: 'warning'
    //     }).then(() => {
    //       store.dispatch('user/resetToken').then(() => {
    //         location.reload()
    //       })
    //     })
    //   }
    if (res.code.code && res.code.code >= 50000 || res.result === 401) {
      Message({
        message: res.message || '服务器错误',
        type: 'error',
        duration: 5 * 1000
      })
      
      return Promise.reject(new Error(res.message || 'Error'))
    } else {
      return res
    }
  },
  error => {
    // console.log('err' + error) // for debug
    // Message({
    //   message: error.message,
    //   type: 'error',
    //   duration: 5 * 1000
    // })

    console.log('err' + error) // for debug
    const res = error.response.data ? error.response.data : {}
    formatMsg(res)

    if (error.response.result === 401) {
      if (!error.config.url.includes('/auth/info')) {
        // to re-login
        MessageBox.confirm('当前登录已过期，请重新登录', '提示', {
          confirmButtonText: '重新登录',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
          store.dispatch('user/resetToken').then(() => {
            location.reload()
          })
        })
      }
    } else {
      let msg
      if (error.response.status === 404) {
        msg = '接口不存在'
      } else if (error.response.status === 403) {
        msg = '无权访问'
      }
      Message({
        message: res.msg || msg || '服务器错误',
        type: 'error',
        duration: 5 * 1000
      })
    }
    return Promise.reject(error)
  }
)

function formatMsg(res) {
  if (res && res.msg && res.data instanceof Array) {
    res.msg = vsprintf(res.msg, res.data)
  }
}

export default service
